Automatic stop



'mamma i..l G LAHtN. AUTOMATIC STOP.

A APPLICATION FILED NOV. 22, i916.

L. G. LARSE'N.

l AUTOMATIC STOP. APPucATmN FILED N'ov. 22, 1916.

Patnted 001k. 39 T1922.

3 SHEETS-SHEET 3.

Gbbofmmg Patented @et 3, 1922a trl t3 tiri visivi" bl LOUIS Gr. LARSEN, 0F BRXDGEPOIRT, CONNECTlCTIT. LASSIGNOR, :BY` MESN ASSIGN- MENTS, 'ro COLUMBIA onlarnornoNn MANUFACTURING coiviraNv, roam, coNNnotrrcUn a coaronarioiv or Dnrawann or isarnon- AUTOIEATIC STQP.

Application filed November 22, 1916. Serial No. 132,883.

T0 all fw iom may cof/iowa.

Be it known that I, Louis Cv. LAnsnN, a citizen of Denmark, and` a resident ot Bridgeport, Connecticut, have invented a new and useful Improvement in Automatic Stops, which invention `is Jfully set iorth in the following specification.

This .invention relates to stop mechanism, and particularly to stop mechanism for use on sound-recording` or reproducing machines to eil-feet the cessation eimovement or the record tablet supporting element upon the completion bythe reproducing or recording member of its traverse of the aforesaid record tablet.

It is an object ot this invention to provide a stop mechanism of the character described, wherein the stopping of the sound record supporting or rotating element shall not take place after the starting oit the motor unt-il such rotating element has made a predetermined number of revolutions, thereby, when said stopping mechanism is applied to a sound-reproducing machine, insuring an adequate time to properly position the needle of the reproducing member in the lirst groove of the record without danger of premature stopping ot the machine.

In my application Serial No. 72,774, tiled January 18, 1916, Patent No. 1,405,046, rlanuary 3l, i922, l have disclosed an automatic stop mechanism wherein oscillatory members are respectively moved by the rotating and traveling elements, and wherein means are provided for so connecting such members upon the cessation ot movement of the said traveling element as to effect the actuation of the stop mechanism. It is an object ot this invention to improve the construction described and claimed in my prior application, 'particularly by the provision of means whereby premature stopping of the record is prevented, as heretofore pointed out.

A still further object of this invention is to provide a stop mechanismwhich shall be simple in construction, easy to manufacture, and ethcient and certain in operation. Other objects will appear as therdescription proceeds.

Stated. broadly, the invention comprises, in

combination with a traveling element and a rotating element, means as a brake or a switch to stop said rotating element upon the stopping of said traveling element, and timing mechanism whereby said rotating element must pass through a predetermined vthe traveling element; means whereby upon `number of revolutions before the stopping the stopping of said traveling element said members cooperate to effect the stopping o'l said rotating element, one oit such members preferably being` supplementally moved into operative engagement with a stop device; and means in the 'form ot timing mechanism, preferably controlled by the rotating element tor preventing said members assuming the aforesaid cooperative relationship to'ciiect the stopping ot the rotating clement prior to a predetermined number of revolutions ot such element;

The invention is capableof a variety of mechanical expressions, one or which is shown on the accompanying drawings, but it is to be expressly understood that the drawings are for purposes of illustration only, and are not tobe construed as definitive of the limits of the invention, reference being had to the appended claims for that purpose.

Referring to the drawings, wherein the table andA record broken away for sake of J clearness;

Fig. 3 is a perspective of a stop mecha nism embodying the present invention, showing in separated relation the several parts of the frictional connection between the tone-arm or traveling element and the member moved thereby:

Fig. 4 is a fragmentary detail plan of a part of the stop mechanism; and

Fig. 5 is a perspective view showing cer tain of theelements of Fig. 4 in separated relation.

Referring in detail to the drawings, 1 represents the frame of any suitable motor such, for example, as is conventionally employed in sound-reproducing or recording machines. 2 represents the usual turn-table spindle driven by said motor, 3 the turntable, and 4 a record supportedthereby, said spindle, table or'record constitutin a rotating element. 5 illustrates any suita le sound-box supported by a suitable tone-arm 6, said tone-arm in turn being shown as rotatably mounted ina hollow bracket or thimble 7, (see F 1), and communicating with a suitable amplifier (not shown)` While 'the drawings illustrate -a tone-arm whichis turned downwardly at its outer end to communicate with a concealed horn, it is to be expresslyunderstood that the in vention is in no respects restricted to any particular type of sound-reproducing ma chine, since by suitable modification the invention could be applied with equal facility io a machine wherein the horn is disposed above the turn-table and record tablet. Said sound-box and its supporting element or tone-arm constitute a traveling element.

Frictionally connected with the traveling element is an arm 8 adapted to be moved by the said element as it traverses the rotating element during the normal operation of the machine. Any suitable friction connection may be employed between said arm 8 and the tone-arm. In the form shown, the depending portion 9 of said traveling element, which is received within the aforesaid bracket or thimble 7, is slightly reduced in exterior diameter at its lower end, as illustrated at 10, said reduced portion being provided with a key` 11. Mounted on the reduced portion 10, with a key-slot receiving the key 11, and engaging the shoulderbetween the aforesaid portions 9 and 10, 1s a washer 12, preferably of metal, between which and a second similar washer 13, also received vupon said'key, is a spiral spring 14. The arm 8 is mounted, with the interposition of frictional washers 15 and 16, preferably of felt, between said washer 13 and a bayonet nut 17 provided on its inner facewith one or more lugs 18 to' be received lin bayonet slots`19 at the lower extremity of thereduced portion V10. The expansion of thespring 13 causes the arm 8 to befrictionally gripped between the felt washers 15 and. 16, but the 'arm 8 may be moved independently of the depending portion of said traveling element and the metal washers keyed thereto. 1f desired, the thimble or bracket 7 may be extended downwardly so as to constitute a housing for the mounting of the arm 8, as illustra-ted at 20, in which event said housing will be apertured, as shown at 21, and an annular end cap may be provided, as illustrated at 22.

Mounted on the frame of the motor by any suitable form of pivotal mounting, as shown at 23, is a llever member 24, downwardly bent at its outer end and provided with a forked extremity as shown at 25. Arm 8, which is bent downwardly to clear the-top wall of the cabinet, is bent upwardly at its inner end and received be tween the furcations ofsaid fork, as shown at 26. Also pivotally mounted upon the frame of the motor, as by a pivot-screw 27, is an arm 28 angularly bent at its inner end, as shown, to provide a toe 29. Mounted on the motor frame is a gear 30, the teeth of which mesh with the teeth of a gear 31 on the turn-table spindle 2, suoli teeth being desirably cut directly in said spindle. Carried by the gear 3() and rotatably fixed with respect thereto is a cam 32 adapted to engage the aforesaid toe 29. To maintain said toe in operative engagement with said cam 32, whereby the arm 28 shall oscillate as the cam rotates, a spring 33 is connected to said arm 28 at one end and anchored to a pin 33 on the motor frame. Arm 28 is provided with'an upstanding pin 34, preferably in a lug projecting laterally from said arm, whereby so long as lever 24 is urged into contact with pin 34 by the normal movement of the traveling element, said lever will parta-ke of the oscillatory movement imparted to arm 28 by cam 32.

Also mounted upon pivot-screw 27 is a second. arm or contact member 35. Washers 36 are desirably interposed between this arm and the motor Vframe and arm 28, as well as between the latter arm and the head of screw 27. Arm 35 is bent angularly in two directions, 'and carries upon its upper face, by preference adjustably with respect thereto, a contact element 37 having an upturned lug 38 intersecting `the plane of movement of vlever 24. Adjustment of the Contact element with respect to arm 35 may vbe provided in any suitable way, as by the use of an elongated slot 39 in suchfelement and screws 40 extending through said slot and securing said element iixedly in its adiusted position. As shown, a leaf-spring 41 is also preferably provided on such contact clement asby attachment to the upstanding lug 38 and bears at its outer end upon the upper face of lever 24.

Means are provided for operatively connecting lever ,24 and arm 28 whereby oscilinattesa lation ot the latter will move the former into operative engagement with the contact arm heretofore described. As shown, a pair ot upstanding lugs Ll2 is provided at one side et the arm 28, and pivotally supported be tween such lugs is a pawl 43 having a downturned nose all adapted to drop at the proper' time into an elongated slot i-5 in the lever 2i.

While any suitable stop mechanism may be employed 'lor stopping the rotation ot the rotating element, the embodiment of the invention shown on the drawings comprises a vertically movable plunger t6 carrying at its lower end a friction pad i7 for engagement with the usual governor disk 4.8. jlun ger 4.5 is provided with a groove extending around the same adjacentits upper end, as illustrated at 11:9. and receivedwithin this groove is a stop-releasing lever 50 loosely pivoted to the motor frame at 51 and pro vided at its outer end with a manual operating means, as a press-button 52 extending through the cabinet top into operative engagement therewith. Mounted on the stopreleasing lever 50 is a leaf-spring 53 bearing at one end against the motor trame, as shown at fiel, and normally tending to depress the bii'akeplunger into stopping engagement with the governor disk. The outer end ot contact arm is operatively related to said brake-plunger 416, and is drawn into the annular groove t9 by spring 55 when said groove is elevated into the plane ot said arm. Spring 55 is attached at one end to said arm 35, and at its opposite end is anchored to a pin projecting up wardly from the motor frame. Arm 555 is so mounted on the pivot screw 2T that its inner end 57 may have a slight vertical movement. A stop 58 ma)7 desirably be provided to limit the downward movement oll said arm and to support the same when it is not in engagement with the brake plunger e6. vStops 59 may also -be provided to limit the lateral movement o'l' the arm 235 and also, il desired, the toe constituting the extension of arm 28.

Means are provided whereby a predetermined number o'li revolutions oit the Vturntable must occur betore the elements moved by the traveling element and rotating -element respectivelyv shall assume such cooperative relationship that, upon the stopping of said traveling element` they will effect actuation of the stop mechanism. lWhile a wide variety ot devices might be employed to accomplish this end. the embodiment shown comprises means tor preventing pawl t8 from prematurely engaging in slot 4:5, and means 'tor actuating the `first said means, and controlled bv the rotation ot the turntable spindle, to admit of such engagement after a predetermined number of revolutions of said spindle. To this end pawl i3 is provided with a depending lug 60, and roJ .mounted on the motor trame at 72,

tation theretrom, a spring 63 is attached at one end to the arm 28 and at its other end to said ratchet. The ratchet is provided through a portion of its periphery wit-h a predetermined number ot teeth 64, and to advance the ratchet, tooth by tooth, from that position in which it is normally held by spring 63, a pawl 65 is mounted on the motor trame and provided with a resilient, inwardly bent end 66 adapted to engage said teeth G4 during movement of the arm 28 in one direction and rotate the ratchet through a distance equal to the space between adjacent teeth, and, during movement of said arm in the opposite direction, to

slide into engagement with succeeding teeth to again advance the ratchet upon the return ot said arm. To prevent return of the ratchet to initial position under the influ- .ence of spring 63, while end 66 ot pawl 65S is sliding into engagement with the succeeding teeth, second pawl 67 is pivotally mounted at 68 on a lug projecting laterally from the arm 28, said pawl being provided at one end `with a nose 69 adapted to snap into engagement with the teeth of said ratchet and maintain the ratchet in the posi- 'tion to which it has been advanced by pawl 65. Pawl 6T is resiliently urged in a direction to engage its nose 69 with the ratchet by a spring' '70 `connected at one end to the pawl and bearing at its opposite end against the side of arm 28. To release pawl 6T trom the ratchet, soas to permit spring 63 to restore the ratchet to intial position in preparation ttor the next actuation of the timing mechanism, a lever 71 is pivotally said lever having an inwardly turned end 73 rprojecting into proximity to the contact member 35, and, at its opposite end, an upstanding lug Tlin which is adjustably mounted a contact screw 75 in the path ot oscillation ot a depending lug 76 on pawl 67. To provide for the easy and gradual movement of the depending lug 60 into and out ot the concentric slot62, the edge of said slot over which the lug will travel is inclined or rovided with a camming tongue, as shown at 77, Lever 24: is preferably cut away at one edge, as shown at 7 8, to enable the en gagement otidepending lug 60 with the tace r`of ratchet 6l.

`In operation, assuming the motor to `be stationary and the parts in the position illustrated in Fig. 2, the operator to start the machine will depress button 52, which will depress the outer end ot lever 50, raising the inner end thereof against the tension of spring 54;. The inner end of this lever, owing to its engagement in groove a9 oi brakeplunger 46, will elevato the latter, freeing the governor disk i8 and enabling the motor to start. lllhen ,said plunger is raised to such a position that groove 19 is brought into the plane ot contact member 35, the inner angularly bent end 57 thereof will be drawn by spring 55 into said groove, locking the plunger in its upper position. The tonearm, as it travels across the turn-table, will, owing to the 'frictional connection between its extremity and arm 8, tend to rotate said arm in a clockwise direction. The eliect of this tendency to rotation will. be to move lever 2liabout its pivot 23, owing to the upwardly directed extremity 26 oi arm 8 engaging in the forked extremity 25 of said lever, urging said lever into engagement with pin 311. As the turn-table spindle 2 rotates, cam 32 is rotated by the interposed gearing 30 and 3l, cam 32 producing an oscillation of arm 28 about pivot 27 owing to the coaction of the cam and toe 29. Spring 33 maintains toe E29 resiliently in engagement with said cam, whereby the arm partakes of the oscillation defined by the contour oi the cam. As arm 28 rotates in a clockwise direction, pin 34@ will engage the side of lever 24, moving the same in a clockwise direction, and through the engagement of said lever with arm 8, moving the latter in an opposite direction against the tendency ot rotation produced by normal movement of the tone-arm across the record, it being understood that, owing to the frictional connection between the arm 8 and said tone-arm, there will be a slipping of the former. During rotation oli' arm 28 in an anti-clockwise direction. arm 8 under the influence oi" the tone-arm will rotate lever 211 lin an anti-clockwise direction, maintaining said lever in engagement with the pin 84. This will continue so long as the tone-arm tra-verses the record on the turntable.

As soon as the turn-table begins to rotate and arm 28 to oscillate, ratchet 61 will be advanced step by step, as upon each movement of arm 2S in an anti-clockwise direction the inner end G6 of pawl 65 in engagement with a tooth 64 of said ratchet will advance the same through a distance equal to the space between adjacent teeth against the tension ot' spring 63. During movement of arm 28 in a clockwise direction, pawl 67 will retain the ratchet in the position to which it has been advanced and pawl 66 will slide into engagement with the next tooth of the ratchet. Thereby, during a predetermined number of revolutions of the turn-table spindie, the ratchet will be advanced step by step, until the last tooth has been engaged and advanced by pawl 65. fit this time concentric slot 62 has been advanced under the depending lug 60, enabling pawl 43, which partakes of the oscillation ot arm 2S, to be lowered through a small angle until nose la rides upon the il V)er surface oi lever 24. Fawl i3 has now assumed such relation to the parts that, upon stopping ot the tonearm, the stopping olf the inotor may be ei fected.

Upon the stopping of the tone-arm, no further tendency will be exerted through arm 8 to rotate lever 9A- in an anti-clockwise direction. According`l 15", upon the next advancement clockwise oit said lever by the arm 28, lever Q4- will remain in the position to which it is advanced by engagement of pin 34 with said level', and during the movement of the arm 28 in an anti-clockwise direction the pawl a3 will slide over the face of lever 24 until its nose lil drops into slot l5. During the subsequent movement or' the arm 28 in a clockwise direction, pawl la will draw lever 9.4 in clockwise direction, said lever during this supplemental movement engaging the upstanding lug 38 on Contact member 35, moving the latter about its pivot 27 and withdrawing its extremity 57 from groove 49 against the tension ot spring 55. Thereupon, spring 54. tnrough lever 50 will depress brake plunger L16, re-cngaging the brake-pad i7 with the governor disk 4:8 and stopping the motor. As lever 24; is moved into operative engagement with the Contact member 35 and the latter is rotated about its pivot 2T in a clockwise direction, lever 71 is engaged by the contact member and rotated slightly in a clockwise direction engaging contactscrew .75 with depending lug 76 on the end ot pawl 67, thereby rotating the latter in a clockwise direction against the tension oit spring and withdrawing the nose G9 ollfthe pawl from engagement with the ratchet 61. The latter is thereupon rotated to its initial position by spring 63, the inclined edge ot cam tongue 7T enga-ging depending lug 60 on pawl 44 and camming the pawl out of engagement with lever 24, until said lug rides upon the face of the ratchet where it is prevented trom again assuming operative relationship with the lever until, following the predetermined number of revolutions of the turn-table spindle, the ratchet is again advanced to a position wherein. lug 60 may drop into vthe concentric slot 62.

lillhile the illustrated embodiment has been described with considerable particularity, it is to be expressly understood that the invention is not to be restricted to the embodiment shown and described, as the same is capable or' a variety ot' mechanical expressions, some of which will readily suggest themselves to those skilled in the art, while cerraschen@ tain parts thereof are susceptible of use without other parts thereof. Therefore, refrotating element, stop mechanism for the' rotating element, means for actuating the stop mechanism upon the stopping of' the traveling element, and timing mechanism for maintaining said means incapable of actuating the stop mechanism at the beginning oit' rotation of the rotating element.

3. In combination, a travel-ing element, a rotating element, stop mechanism for the rotating element, means for actuating the stop mechanism upon the stopping of the traveling element, means controlled by the rotating element for rendering the first named means inoperative to actuate the stop mechanism prior to a predetermined number of revolutions at the beginning of rotationy oil the rotating element.

4. In combination, a traveling element, a rotatingl element, stop mechanism for the rotating element, means for actuating the stop mechanism upon the stopping of the traveling element.` and timing mechanism, controlled by the rotating element, for maintaining said means inoperative to actuate the stop mechanism at the beginning of r0- tation of the rotatingl element,

5. In combination. a traveling element, a rotating element, stop mechanism, oscillating means moved by the traveling element, and oscillating means moved by the rotating element, means whereby, upon the stopping` of the traveling element, both the oscillating means are adapted to co-operate with each other to render the stop mechanism operative, and timing mechanism adapted to prevent such co-operation.

6. In combination, a traveling element, a rotating element, stop mechanism, oscillating` means moved by the traveling element, and oscillating means moved by the rotating element, means whereby, upon the stopping` of the traveling element, both the oscillating means are adapted to co-operate with each other to render the Stop mechanism operative, and means adapted to prevent co-operation prior to a pre-determined number of revolutions of the rotating element.

7. In combination, a traveling element, a

rotating element, stopy mechanism for the rotating element, ay member moved by the traveling element, a member moved by the rotating element, means whereby, upon the stopping of the traveling element, both of suchi members are adapted to 3o-operate with each other to render the stop mechanism operative, and means whereby the rotating element', at the beginning of rotation, must pass through ar pre-determined: number of revolutions before the members can so cooperate.

S. In combination, a traveling element, a rotating element, stop mechanism for the rotating element, means' for actuating the stop mechanism upon the stopping of the traveling element, and timing mechanism whereby the rotating element, at the beginning of its rotation, must pass through a pre-determinedVV number of revolutions be- Jfore said means may be rendered operative to actuate the stop mechanism.

9. In combination, a traveling element, a rotating element, stop mechanism for the rotating element, al member moved by the traveling element, a member moved by the rotating element, means controlled by the rotating element whereby, upon the stopping of the traveling element, both of such members are adapted to co-operate with each other to renderv the stop mechanism operative, and means whereby the rotating element, at the beginning of its rotation, must pass through a pre-determined number of revolutions before the members can so cooperate.

l0. In combination, a traveling element, a rotating element, stop mechanism for the rotating element, means for actuating the stop mechanism upon the stopping of the traveling element, and timing mechanism whereby the rotating element, at the beginning of its rotation, must pass through a pre-determined number of revolutions before said means may be rendered operative to actuate the stop mechanism.

l'l. In combination, a traveling element, a member moved thereby, a rotating element, a member moved by said rotating element and operatively connected to said firstnamed member to move the same in one direction, stop mechanism, means whereby upon the stopping of said traveling element said second-named member moves said firstnamed member into operative engagement with said stop mechanism, and means to prevent operation of said last-named means prior to a predetermined number of revolui tions ot said rotating element.

12. In combination, a traveling element, a member controlled by the traveling element` a rotating element, a member controlled by the rotating element, connections whereby said members are maintained in coacting relation during the normal movement of said traveling element, stop mechanism, means for moving said first-named member into engagement with said stop mechanism upon the stoppingof said traveling element, and means to prevent operation of said lastnamed means prior to a predetermined numi ber of' revolutions of said rotating element.

18. In combination, a traveling element, a member-controlled by the traveling element, a rotating element, a second member controlled by the rotating element, connections whereby said members are maintained in coacting relation during the normal movement ofl said traveling element, stop mechanism, means whereby said second member moves said first member into operative engagement with saidstop mechanism upon the stopping of said traveling element, and means to prevent operation` of saidv last-named means prior to a predetermined number of revolutions of said rotating element.

14. In combination, a traveling element, a member controlled by the traveling element, a rotating element, a second member controlled by the rotating element, connections whereby said members are maintained in coacting relation during the normal movement of said traveling element, stop mechanism, means for moving said first member into operative engagement with said stop mechanism 'upon the stopping of said traveling element, and timing mechanism for controlling the operation of said last-named means.

A15. In combination, a traveling element, a member moved thereby, a rotating element, a vmember moved by said rotating element and operatively connected with said firstnamed member to move the same in one direction, stop mechanism, means whereby upon the stopping of lsaid traveling element said second-named member moves said firstnamed member into operative engagement with said stop mechanism, and timing mechanism for controlling the operation of said last-named means.

16. In combination, a traveling element, a member frictionally driven from and continuously in operative relation with the traveling" element, a rotating element. a second member continuously in operative relation with the rotating element, operative connections between said members, stop mechanism, means for moving said first member into operative engagement with said stop mechanism uponthe stopping ot1 said traveling element, andmeans to prevent the operation of' said last-named means prior to a predetermined number of revolutions of `said rotating element.

17. In combination, a. traveling element, amember moved thereby, a rotating element, a second member moved bv said rotatingelement, connections between said members whereby, said, second member moves said first member in one direction during the normal travel of said traveling element, a contact member, means for stopping said rotating element controlled by said contact member, means whereby said second member moves said first member into operative engagement with said contact member upon the stopping of said traveling element, and timing mechanism to control the operation of said last-named means.

18. In combination, a traveling element, a'member moved thereby, a rotating element, a second member moved by said rotating element, connections between said members whereby said second member moves said first member in one direction during the normal travel of said traveling element, a contact member, means for stopping said rotating elementv controlled by said contact member, means whereby said second member moves'said first member into operative engagement with said contact member upon the stopping of said traveling element, and means to preventthe operation of said lastnamed means prior to a predetermined number of' revolutions of said rotating element.

19. In combination, a traveling element, a member moved thereby, a rotating element, a second member moved by said rotating element, connections between said members whereby said second member moves said firstmember in one direction during the normal travel of said traveling element, a Contact member, means `for stopping said rotating element controlled by said contact member, a latch carried by said second member and adapted to move said first member into operative engagement with said contact member upon the stopping of said traveling element, and means to prevent operation of said latch prior to a predetermined number of revolutions of said rotating element.

20. In combination, a traveling element, a member moved thereby, a rotating` element, a second member moved by said rotating element, connections between said members whereby said second member moves said first member in one direction during the normal travel ofl said traveling element, a contact member, means for stopping said rotating element controlled by said contact member, a latch carried by said second member and adapted to move said first member into operative engagement with said contact member upon the stopping of said traveling element, and timing mechanism to control the operation of said latch.

2l. In combination, a traveling element. a ymember moved thereby, a rotating element` a second member moved by said rotating` element, connections between said members whereby said second member moves said first member in one direction during the normal travel of said traveling element,

llO

traveling element, stop mechanism, a member under the cont-rol ot' the rotating element and adapted to actuate the stop mechanism upon the stopping of the traveling element, and means adapted to prevent the member trom actuating the stop mechanism until after a pre-determined number of revolutions or' the rotating element.

In combination, a rotating element, a traveling element, stop mechanism, a member under the control of the rotating element and the traveling element and adapted to actuate the stop mechanism upon the stopping of the traveling element, and means adapted to prevent the member from actuating the stop mechanism until after a pre-determined number ot revolutions of the rotating element.

55. In combination With a rotating element and a traveling element7 stop mechanism for the rotating element, including a rotatable member, a brake member, and a traveling member, means for operatively relating the traveling member and the brake i member when the rotatable member has made a certain progression, and means for preventing the brake member from actuating until after the traveling element has ceased to travel.

36in combination with a rotating element and a traveling element, stop mechanism for the rotating element, including a rotatable member adapted to be actuated by the rotating element, a brake member, and a traveling member, means for operatively relating the traveling member and the brake member when the rotatable member has made a certain progression, and means for preventing the brake member from actuating until after the traveling element has ceased to travel.

37. In combination witha rotating element and a traveling element, stop mechanism for the rotating element, including a rotatable member, a brake member, and a traveling member having frictional connection with the traveling element, means for operatively relating the traveling member and the brake member when the rotatable member has made a certain progression, and

means preventing the brake member from actuating until after the'traveling element has ceased to travel.

3S. In combination With a rotating element and a traveling element, stop mechanism for the rotating element, including a rotatable member, a detent, a brake member and a traveling member, means for connecting the traveling member and bralre member When the rotatable member has made a certain progression, and means for prevent-l tively, and adapted to co-operate to actuate the stop mechanism upon the stopping oic the traveling element, and means independent of the stop mechanism adapted to prevent such (Yo-operation.

4l. In combination, record rotating means, sound reproducing means associated therewith, means for stopping the record rotating means at the completion of the record, and means preventing the operation ot' said last named means during the initial record playing period.

In combination, record rotating means, sound reproducing means associated therewith, means tor stopping the record rotating means at the completion of the record, said means including an oscillation movement imparting cam, and means preventing the operation of said last named means during the initial record playing period.

In testimony whereof I have signed this specii'ication.

LOUS G. LARSEBL 

